A New Harmonic Analyzer Based on Wavelet and Virtual Instrument

Author

Zhan-Guo, Wang ; Shi Huang-shuang ; Song, Wang

Author_Institution

Sch. of Electr. Eng., Beijing Jiaotong Univ., Beijing, China

Volume

1

fYear

2009

fDate

26-27 Aug. 2009

Firstpage

253

Lastpage

255

Abstract

A new harmonic analysis equipment based on wavelet transform (WT) and virtual instrument(VI)is generated in the paper, in hope of overcoming the disadvantages of traditional harmonic analysis such as low data processing ability and high-cost . We implemented real-time harmonic analysis for welding machine no-load voltage under this method. Compared with experimental data obtained by FLUKE 43B, this new harmonic analysis method gets the total harmonic distribution (THD) and amplitude of each harmonic content with high accurate. Furthermore, it has low-cost and high real-time performances, and it can be modified easily with the users´ requirements.

Keywords

power engineering computing; power supply quality; power system harmonics; power system measurement; virtual instrumentation; wavelet transforms; FLUKE 43B; harmonic analyzer; power quality analyzer; real-time harmonic analysis; total harmonic distribution; virtual instrument; wavelet transform; welding machine no-load voltage; Data acquisition; Data processing; Harmonic analysis; Instruments; MATLAB; Power system harmonics; Signal analysis; Signal resolution; Time frequency analysis; Wavelet analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Intelligent Human-Machine Systems and Cybernetics, 2009. IHMSC '09. International Conference on

Conference_Location

Hangzhou, Zhejiang

Print_ISBN

978-0-7695-3752-8

Type

conf

DOI

10.1109/IHMSC.2009.71

Filename

5336179